Steam-trap.



N-. 731,756.. PATENTED JUNE 23, 1903.

M. w. GOTTLE.

`STEAM TRAP. .APPLICATION P ILBD JULY '21. 1902.

lo companying drawings, formin `4o` bears between tlieunder surface of the cupl45 ably secured tothe casingrbelow the inletopening and extends across the open upper end of thecup, whereby incoming water is caused to fall into the chamber of the casing and not into the cup.

` '5o A discharge-pipe 10 is suitably supported IUNITED STATES Patented June 23, 1903.

PATENT OFFICE.

MELVIN W. COTTLE, OF ST. LOUIS, MISSOURI,V ASSIGNOR TO ALLEN STEAM TRAP AND SEPARATOROOMPANY, OF ST. LOUIS, MISSOURI, A CORPO- s-TAM RATION OF MISSOURI.

SPECIFICATION forming part of Letters Application led July 2l, 1902.

To a/ZZ whom, it mayl concer-n: y Be it known that I, MnLvIN W. (BOTTLE, a

citizen of the United States, residing at St.A Louis, Missouri, have invented a certain new and useful Improvement in Steam-Traps, of

which the following is a full,`clear, and exact, description, such as willenable others skilled in the art to which it appertains to make and use the same, reference being had to the acg part, of this specification, in which- V p Figure lis a central vertical sectional elevation. Fig. 2 is a detail, and Figs. 3, 4, 5, and 6 are diagrammatic views illustrating the t5 operation of the device. My invention relates to improvements in steam-traps, my object being to provide a simple and'efticient structure in which the dischargefpipe for the water is closed by a zo water seal, thus preventing escape of steam from the said trap.

To these ends and also to improve generally, upon devices of theLcharacter indicated my invention consists in the various matters hereinafter described and claimed.

Referring now more particularly to the drawings, l representsa suitable casing, and `2 refers to an inletfpipe opening into the topA of the same for leading the water and steam 3o to the casing-chamber. A suitable guide-` post 3 extends upwardly from the bottom-of I the casing, and a cup 4 has` an opening in its` bottom which receives a cupped part 4,whose i pocket 5 receives the said guide-post, while 3 5 the top of said cupped part forms a valve for the open end of the discharge-pipe, the said post being received` sufficiently loosely in said pocket to permit f ree vertical movement of` the cup. v A spring 6, c oiled about the post,

bottom and suitable adjusting-n uts 7 upon the threaded lower portion 8 of the said post,` the said cup being thus yieldingly maintained in uppermost position. A .defector 9 is suit- Patent No. 731,756, dated .rune 23, 1903.` serial IIa-116.381. (No model.)

in the casing above the bottom of the cup, said pipe extending vertically within said cup and having its lower end open and in line with the upwardly-projecting part ll of the cup-bottom, which produces the recess 5 for 55 the guide-post. A substantially horizontal pipe l2 connects the lower portion of the casing-chamber with the vessel into which the Wateris to be discharged, said pipe being pro- -vided with two valves 13 and 14, and from a 6o pointbetween the said valves a pipe l5 connects the pipe l2 with the upper portion of the Vertical pipe 10.

The pipe lO can of course be supported in many ways; but I have here shown this pipe as depending fromv a spider 16, supported upon the walls of the casing. The pipe l0 is merely a pipe-section open at both ends, the Lipper end beingclosed by means of a cap-plate 17, fastened uponthe spider;

The cup 4 is normally maintainedin raised position by means of the spring 6, and the projecting portion ll of the cup-bottom enters the open lower end of the discharge-pipe and closes the same. When sufiicientwater has been discharged into the casing-chamber to rise above the upper edge ofthe cup, this `water overiiows into said .cup and surrounds the lower portion of the discharge-pipe l0. Whenthecuphasreceivedasuflicientamount 8o of water to overcome the forceof the spring,

thecup falls, thus carrying the portion l1 (which is, in elfect, a valve) away from the end of the discha1ge-pipe..and opening said pipe. The steam above the water then forces 85 water from the cup until such -an amount has been discharged that the weightof the con tained Water is overcome by the;fo,r.ce,of`the spring, whereupon the spring again raises the cup and forces the valve into position to close 9o the'discharge-'pipe, the cup remaining in this `elevated position until sufcient Vwaterhas flowed thereinto over its upper edge to overcome the force of the spring. The-partsare so proportionedand arrangedthatthefcup does not receive suliicientwatertolower the same until the water in'the cup has risen a considerable distance along the dischargepipe andthe cup is relevated to cause its valve to close the discharge-pipe before thel roo cup has been emptied to such extent that the water remaining in the cup is below the lower endofthedischarge-pipe. Thusthedischargepipe is closed to the passage of steam at all times, the valve 1l normally maintaining the pipe closed and the water in the cup closing the pipe to the passage of steam during the time that the valve 11 is removed from the discharge pipe against the action of the spring 6.

Normally the valve 13 is closed; but when it is desired to Hush lthe casing-chamber for cleaning purposes or otherwise this valve can be open and the chamber can be flushed in a well-understood manner.

The construction of the present device prevents movement ofthe cup and its valve at too frequently recurring intervals, thus saving the parts from unnecessary wear. The water is usually fed by drops from the steamseparator to the trap, and the detlectoreauses the water to discharge into the casing and not directly into the cup. When the water in the casing has reached the level of the upper edge of the cup, it overliows into the lat- 1er, as shown in Fig. 3, and this overliow continues without causing any operation of the parts until the cup has received such an amount of water (e. g., the amount shown in Fig. 4) that the force of the springis overcome, when the cup falls and permits a portion of its contained water to discharge through the pipe, as shown in Fig. 5. The spring then reasserts itself and elevates the cup, thus closing the outlet-pipe and raising the upper edge of the cup above the level of the water in the casinggas shown in Fig. 6. Therefore before a second lowering of the cup can occur such an amount of water must be deposited into the casing that first the water-level in said casing is raised above the upper edge of the cup and then the water overiiows into said cup.

' I am aware that many minor changes in the construction, arrangement, and combination of the several parts of my device can be made and substituted for those herein shown and described without in the least departing from the nature and principle of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a steam-trap, a casing, an outlet-pipe, a movable cup receiving the open inner end of said pipe, a valve for said opening, connected to and movable with said cup, adapted to close said opening7 means for holding said cup normally elevated, an inlet-pipe opening into said casing at its upper end and a domeshaped deiector of greater diameter than said cup, below said inlet adapted to cause water entering the casing to fall outside of the cup; substantially as described.

2. In a steam-trap,.a casing, an outlet-pipe, a movable cup receiving the open inner end of said pipe, a valve for said opening, connected to and movable with said cup, adapted to close said opening, means for holding said cup normally elevated,'an inlet-pipe opening into said casing at its upper end, and a domeshaped deiiector of greater diameter than said cup, connected with and supported by said casing below said inlet, adapted to cause water entering the casing to falloutside of the cup; substantially as described.

3. In a steam-trap, a casing, an outlet-pipe, a movable cup receiving the open inner end of said pipe, a valve for said opening, connected to and movable with said cup, adapted to close said opening, means for holding said cup normally elevated, an inlet-pipe opening into said casing at its upper end and a domeshaped deflector of greater diameter than said cup, connected with and supported by said casing below said inlet, adapted to cause water entering the casing to fall outside of the cup; substantially as described.

4. In a steam-trap or the like, a casing, an ou tlet-pipe having its lower end open, a movable cup receiving the said open end of said pipe, a guide-post below said cup, and means for elevating said cup, a portion of the bottom wall of said cup being cupped upwardly to produce a valve for said pipe and a pocket for said guide-post; substantiallyas described.

5. In a steam-trap or the like, a casing, an outlet-pipe provided with an opening, a movable cup receiving the portion of said pipe provided with said opening, lneans for elevating said cup, a guide-post below said cup, the bottom wall of said cup being provided with an opening, and a part in said opening and provided with a valve for said pipe-opening and a receiver for said guide-post; substantially as described.

b'. In a steam-trap or the like, a casing, an outlet-pipe havingan opeuinginitslowerend, a movable cup receiving the said lower end of said pipe, a valve forsaid opening carried by said cup, a guide-post coperating with said cup, and a spring coiled about said post and tending to elevate the said cup; substantially as described.

7. In a steam-trap or the like, a casing, an outlet-pipe provided with an opening, a movable cup receiving the portion of said pipe provided with said opening, a valve for said opening connected with said cup, a guide therefor, means for elevating said cup and holding the same in a normally elevated position, and a dome-shaped dellector connected with said casing below said inlet-pipe for de- Ilecting'water from said opening beyond the outer walls of said cup; substantially as described.

In testimony whereof I hereunto afx my signature, in the presence of two witnesses, this 8th day of July, 1902.

MELVIN WV. COTTLE.

Witnesses:

GALEs P. MOORE, GEORGE BAKEWELL.

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